Centrifugal machine.



PATENTED DEC. 6, 1904.

S.R.KENNEDY. GENTRIFUGAL MACHINE.

APPLICATION FILED JAN 26. 1904.

.NO MODEL.

M mm d,. )3. Sh w ATTORNEY.

Patented December 6, 1904.

UNITED STATES PATENT OFFICE.

SAMUEL RIDGIVAY KENNEDY, OE SHIPPENSBURG, PENNSYLVANIA, ASSIGNOR TO THEAMERICAN DAIRY PRODUCTS AND MANUFAO TUBING COMPANY, OF PHILADELPHIA,PENNSYLVANIA, A (JOB- PORATION OF PENNSYLVANIA.

CENTHIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 776,745, dated December6, 1904. Application filed January 26, 1904. Serial No. 190,713. (Nomodel.)

To all /7/0717 it may concern:

Be it known that I, SAMUEL RIDewAY KEN- NEDY, a citizen of the UnitedStates, and a resident of Shippensburg, in the county of Oumberland andState of Pennsylvania, have invented certain new and useful Improvementsin Centrifugal Machines, of which the following is a specification.

Objects of the present invention are to provide for subjecting milk andmilk products to the action of a centrifugal machine under conditionspeculiarly adapted to effect the exclusion of air, and thus secure theabsence of contamination, such as would result from the admission ofundesirable ferments which are present in the atmosphere in theneighborhood of dairies and places where dairy operations are conducted.

Another object of the invention is to especially adapt a centrifugalmachine to the separation of the fatty portion from the constituents ofcream.

Other objects of the invention will appear from the followingdescription.

Stated in general terms, the invention comprises the combination, with acentrifugal machine, of a vacuum-chamberinclosing or including thebasket thereof. It also comprises the combination, with the basket of acentrifugal machine, of material, as blotting-paper, arranged with orwithout absorbent material, as toweling, in such a way as to form thewalls of the basket; and the invention further comprises theimprovements to be presently described and finally claimed.

The nature, characteristic features, and scope of my invention will bemore fully understood from the following description, taken inconnection with the accompanying drawings, forming part hereof, and inwhich is illustrated, principally in central section, apparatusembodying features of the invention.

In the drawing, 1 is the bowl or basket of a centrifugal machine, andits curved wall is perforated or made reticular.

2 is a chamber inclosing or including the basket or bowl 1 and closedagainst the outer atmos 'ihere, and it is shown as provided with meansfor creating within it a more or less perfect vacuum. As shown, there isa pump 3, which serves to exhaust air from the chamber 52 by way of theoutlet 4, which is shown as leading to a receptacle 5, which receivesthe sling from the machine and which is ordinarily closed.

6 is an inlet shown as provided with a valve, and it communicates with areceiving-tank 7, normally sealed to prevent admission of air, and withthe chamber 2.

8 is a guide or nozzle which is useful for directing the incoming supplyto the basket or bowl 1.

The receptacle 2 may be arranged so as to be opened in order to recoverthat portion of the load which remains in the basket or bowl. As shown,this is accomplished by making the parts of the chamber separable, as at13.

9 indicates an electric motor which constitutes one means for drivingthe bowl or basket.

In use the load is introduced into the basket from the reservoir '7 byway of the pipe 6, and air is exhausted from the chamber 2 by means ofthe pump 3, acting by way of the outlet i. Thus the material in thecentrifugal is operated upon in a vacuum-chamber or one from which airis excluded, and this secures the absence of contamination by excludingundesirable ferments which are present in the air, for example, aboutdairies and places where dairy operations are conducted.

10 is a wall or diaphragm of material which has the property ofretaining upon one of its faces the fatty constituents of milk or creamand of permitting the other constituents to pass through it.lzvlotting-paper is an example of such material.

11 is a layer of absorbent material, as toweling, arranged between thematerial 10 and the perforated wall of the basket or bowl. WVhen creamis subjected to the action of the machine, the fatty portions remain inthe basket, and the other portions escape through the wall or partition10, and the presence of the textile material 11 enables the operation tobe carried on rapidly.

12 represents retaining-rings, which serve to hold the parts and 11 toplace.

It will be obvious to those skilled in the art to which my inventionappertains that modifications may be made in details without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and mode of operation of the parts hereinabove described;but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. The combination with a centrifugal machine of a vacuum-chamberinclosing or including the basket thereof, substantially as described.

2. The combination with a centrifugal machine of a chamber closedagainst the outer atmosphere inclosing or including the basket thereof,and means for exhausting air from said chamber, substantially asdescribed.

3. The combination with a centrifugal machine of a vacuum-chamberinclosing or including the basket thereof, normally sealed admissionconnections to said chamber, normally sealed eduction means from saidchamber, and a vacuum-pump connected with said chamber, substantially asdescribed.

4. The combination with the perforated bowl or basket of a centrifugalmachine of a layer of material adapted to retain upon its face the fattyconstituents and to permit of the passage of the other constituents, anda layer of absorbent material interposed between the basket and thefirst-mentioned layer, substantially as described.

5. The combination with the perforated basket or bowl of a centrifugalmachine of a layer of blotting-paper, an interposed layer of textilematerial, and retaining-rings, substantially as described.

In testimony whereof I have hereunto set my hand this 21st day ofJanuary, 1904.

SAMUEL RIDGWAY KENNEDY.

In presence of- WV. J. JAoKsoN, K. M. GILLIGAN.

